Synthesis and characterization of a new iridium(III) complex with bulky trimethylsilylxylene and applications for efficient yellow-green emitting phosphorescent organic light emitting diodes

Dyes and Pigments

Volumn 92, Issue 1, 2012, Pages 603-609

  So, Ki Ho ^a   Kim, Ran ^a   Park, Hyuntae ^a   Kang, Il ^a   Thangaraju, K ^a   Park, Young Seo ^b   Kim, Jang Joo ^b   Kwon, Soon Ki ^a   Kim, Yun Hi ^a  

^a Gyeongsang National University   (South Korea)

^b Seoul National University   (South Korea)

Author keywords

High efficiency; Iridium(III) complex; Phosphorescent organic light emitting diodes; Reduced aggregation formation; Trimethylsilyl xylene substituted ligands; Yellow green emission

Indexed keywords

HIGH EFFICIENCY; IRIDIUM(III) COMPLEX; PHOSPHORESCENT ORGANIC LIGHT EMITTING DIODES; REDUCED AGGREGATION FORMATION; TRIMETHYLSILYL; YELLOW-GREEN EMISSION;

CHELATION; DIFFERENTIAL SCANNING CALORIMETRY; DIODES; GLASS TRANSITION; IRIDIUM; IRIDIUM COMPOUNDS; LIGANDS; LIGHT EMISSION; PHOSPHORESCENCE; RESONANCE; SPECTROSCOPIC ANALYSIS; SYNTHESIS (CHEMICAL); THERMOGRAVIMETRIC ANALYSIS; XYLENE;

ORGANIC LIGHT EMITTING DIODES (OLED);

EID: 79960685163     PISSN: 01437208     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.dyepig.2011.04.017     Document Type: Article

References (24)

1. C.W. Tang, and S.A. Van Slyke Organic electroluminescent diodes Applied Physics Letters 51 1987 913 915
2. A.R. Duggal, J.J. Shiang, M.H. Christian, and F.F. Donald Organic light -emitting diodes for illumination quality white light Applied Physics Letters 80 2002 3470 3472
3. B.C. Krummacher, V.E. Choong, M.K. Mathai, S.A. Choulis, F. So, and F. Jermann Highly efficient white organic light -emitting diode Applied Physics Letters 88 2006 113506 113508
4. S.R. Forrest The path to ubiquitous and low-cost organic electronic appliances on plastic Nature 428 2004 911 918 (Pubitemid 38568095)
5. M.A. Baldo, D.F. O'Brien, Y. You, A. Shoustikov, S. Sibley, and M.E. Thompson Highly efficient phosphorescent emission from organic electroluminescent devices Nature 395 1998 151 154 (Pubitemid 28425649)
6. E. Holder, B.M.W. Langeveld, and U.S. Schubert New trends in the use of transition metal-ligand complexes for applications in electroluminescent devices Advanced Materials 17 2005 1109 1121 (Pubitemid 40665816)
7. S.O. Jung, Q. Zhao, J.-W. Park, S.-O. Kim, Y.-H. Kim, and H.-Y. Oh A green emitting iridium(III) complex with narrow emission band and its application to phosphorescence organic light-emitting diodes (OLEDs) Organic Electronics 10 2009 1066 1073
8. Y.-S. Park, J.-W. Kang, D.M. Kang, J.-W. Park, Y.-H. Kim, and S.-K. Kwon Efficient, stable white organic light-emitting diode based on high energy level yellowish-green dopants Advanced Materials 20 2008 1957 1961
9. (III) complexes: preparation, structures, electrochemistry, photophysical properties and their applications in organic light-emitting diodes (OLEDs) European Journal of Inorganic Chemistry 17 2004 3415 3423
10. D.M. Kang, J.-W. Kang, J.-W. Park, S.O. Jung, S.-H. Lee, and H.-D. Park Iridium complexes with cyclometalated 2-cycloalkenyl-pyridine ligands as highly efficient emitters for organic light-emitting diodes Advanced Materials 20 2008 2003 2007
11. S.O. Jung, Y.-H. Kim, S.-K. Kwon, H.-Y. Oh, and J.-H. Yang New hole blocking material for green-emitting phosphorescent organic electroluminescent devices Organic Electronics 8 2007 349 356 (Pubitemid 46778839)
12. S.O. Jung, Y.H. Kim, H.S. Kim, and S.K. Kwon Effective electrophosphorescence emitting devices by using new type Ir(III) complex with bulky substituent spaces Molecular Crystals and Liquid Crystals 444 2006 95 101 (Pubitemid 43860383)
13. D.-S. Leem, S.O. Jung, S.-O. Kim, J.-W. Park, J.W. Kim, and Y.-S. Park Highly efficient orange organic light-emitting diodes using a novel iridium complex with imide group-containing ligands Journal of Materials Chemistry 19 2009 8824 8828
14. S. Reineke, F. Lindner, G. Schwartz, N. Seidler, K. Walzer, and B. Lussem White organic light-emitting diodes with fluorescent tube efficiency Nature 459 2009 234 238
15. Y. Sun, C. Noel, C. Giebink, H. Kanno, B. Ma, and M.E. Thompson Management of singlet and triplet excitons for efficient white organic light-emitting devices Nature 440 2006 908 912
16. Y. Zhang, G. Cheng, Y. Zhao, J. Hou, and S. Liu White organic light-emitting devices based on 4,4′-bis(2,2′-diphenyl vinyl)-1,1′-biphenyl and phosphorescence sensitized 5,6,11,12- tetraphenylnaphthacene Applied Physics Letters 86 2005 011112 011115
17. G. Cheng, F. Li, Y. Duan, J. Feng, S. Liu, and S. Qiu White organic light-emitting devices using a phosphorescent sensitizer Applied Physics Letters 82 2003 4224 4226
18. Y. You, C.-G. An, D.-S. Lee, J.-J. Kim, and S.Y. Park Silicon-containing dendritic tris-cyclometalated Ir(III) complex and its electrophosphorescence in a polymer host Journal of Materials Chemistry 16 2006 4706 4713 (Pubitemid 44866761)
19. N. Cumpstey, R.N. Bera, P.L. Burn, and I.D.W. Samuel Investigating the effect of steric crowding in phosphorescent dendrimers Macromolecules 38 2005 9564 9570 (Pubitemid 41698408)
20. M.J. Cho, J.I. Jin, D.H. Choi, Y.M. Kim, Y.W. Park, and B.-K. Ju Phosphorescent, green-emitting Ir(III) complexes with carbazolyl-substituted 2-phenylpyridine ligands: effect of binding mode of the carbazole group on photoluminescence and electrophosphorescence Dyes and Pigments 83 2009 218 224
21. M.J. Cho, J.I. Jin, D.H. Choi, J.H. Yoon, C.S. Hong, and Y.M. Kim Tunable emission of polymer light emitting diodes bearing green-emitting Ir(III) complexes: the structural role of 9-((6-(4-fluorophenyl)pyridin-3-yl)methyl)-9H- carbazole ligands Dyes and Pigments 85 2010 143 151
22. J. Lee, J.-I. Lee, K.-I. Song, S.J. Lee, and H.Y. Chu Effects of interlayers on phosphorescent blue organic light -emitting diodes Applied Physics Letters 92 2008 203305 203307
23. J. Lee, J.-I. Lee, J.Y. Lee, and H.Y. Chu Enhanced efficiency and reduced roll-off in blue and white phosphorescent organic light-emitting diodes with a mixed host structure Applied Physics Letters 94 2009 193305
24. F.J. Zhang, Z. Xu, D.W. Zhao, S.L. Zhao, L.W. Wang, and G.C. Yuan The effect of DCJTB doping concentration in PVK on the chromatic coordinate of electroluminescence Physica Scripta 77 2008 055403 055408